Oasis Heating & Air Conditioning LLC is a trusted HVAC contractor in Milwaukee, WI, proudly serving Milwaukee County, Ozaukee County, Waukesha County, Washington County, and surrounding areas. Based in Milwaukee, we provide expert repair, maintenance, and replacement services for air conditioners, furnaces, boilers, water heaters, and heat pumps. Our skilled team delivers reliable, energy-efficient solutions to keep your home or business comfortable year-round. We serve communities including Mequon, Brookfield, Shorewood, Wauwatosa, West Allis, Greenfield, Franklin, Cedarburg, Grafton, and beyond. Choose Oasis Heating & Air Conditioning LLC for dependable HVAC services you can trust.